Magnetic Bearing Stator Frame for Secure Winding Alignment
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Solution Overview
Problem
The iron core of magnetic suspension bearings is not fixed steadily to the winding, leading to frequent detachment and difficulty in locating the winding properly.
Innovation Solution
A bearing stator design with a frame having an accommodation recess and positioning portions that securely clamp the axial winding in place, preventing detachment and ensuring proper alignment with the bearing iron core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the iron core is not fixed to the winding, then the structure is simple and easy to manufacture, but the iron core detaches frequently and the winding is difficult to locate
Solution Approach 1:
The frame is divided into multiple sections with positioning portions at different locations (first positioning portion on outer walls, second positioning portion in accommodation recess). This segmentation allows each part to perform specific functions: the first positioning portion locates the winding, while the second positioning portion prevents detachment, thereby resolving the contradiction between ease of manufacture and reliability.
Solution Approach 2:
The frame acts as an intermediary component between the iron core and the winding. It provides positioning portions that simultaneously achieve winding location and prevent iron core detachment, solving the contradiction by introducing a mediating structure that fulfills both requirements.
2Ease of operation
If the iron core is not fixed to the winding, then the assembly process is simple, but the iron core detaches frequently during operation
Solution Approach 1:
The positioning portions are segmented into two functional types: first positioning portions for ease of assembly (locating the winding) and second positioning portions for operational reliability (preventing detachment). This segmentation allows the structure to be easy to operate during assembly while maintaining reliability during operation.
Solution Approach 2:
The positioning portions are pre-designed into the frame structure before assembly. The first positioning portions preliminarily locate the winding during assembly, and the second positioning portions preliminarily prevent detachment, ensuring both ease of operation and reliability without requiring additional fixing steps.
3Reliability
If positioning structures are added to the frame, then the iron core is securely fixed, but the device complexity increases
Solution Approach 1:
The frame structure merges multiple functions into a single component: it provides accommodation for the iron core, positioning portions for winding location, and positioning portions for preventing detachment. This merging achieves high reliability without proportionally increasing device complexity, as all functions are integrated into the frame rather than requiring separate components.
Solution Approach 2:
The frame serves multiple purposes: it supports the iron core, locates the winding through first positioning portions, and prevents detachment through second positioning portions. This multi-functionality achieves high reliability while minimizing device complexity by using a single universal component instead of multiple specialized parts.
Data Source
AI summary
The present disclosure provides a magnetic suspension bearing stator, a compressor and an air conditioner. The bearing stator includes a frame, a bearing iron core and an axial winding, the frame is provided with an accommodation recess used to position the axial winding. A position-limiting portion is disposed in the accommodation recess, and the position-limiting portion is used to keep the axial winding in the accommodation recess. The frame is provided with a first positioning portion for connecting with the bearing iron core on the outer wall surfaces of both sides of the accommodation recess. The frame is not easy to come out from the bearing core, and the axial winding is not easy to come out from the frame, so that the relative position between the axial winding and the bearing iron core is fixed.